M4.7 earthquake — 85 km W of Petrolia, CA
An magnitude 4.7 earthquake occurred 85 km W of Petrolia, CA on Aug 29, 2026 at 02:41 UTC. The epicenter was at a depth of 10 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M4.7 |
|---|---|
| Depth | 10.0 km |
| Coordinates | 40.450, -125.272 |
| Time | Aug 29, 02:41 UTC |
| Location | 85 km W of Petrolia, CA |
| USGS event ID | nc75426637 |
What this magnitude typically means
Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M2.9 | 8 km | Aug 29, 17:12 UTC | 77 km W of Petrolia, CA |
| M2.6 | 22 km | Aug 28, 21:24 UTC | 66 km W of Petrolia, CA |
| M2.7 | 30 km | Aug 28, 21:18 UTC | 56 km W of Petrolia, CA |
| M2.6 | 59 km | Aug 25, 23:02 UTC | 143 km W of Ferndale, California |
| M2.5 | 64 km | Sep 1, 01:07 UTC | 23 km W of Petrolia, CA |
| M4.4 | 100 km | Aug 31, 08:36 UTC | 184 km W of Ferndale, California |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.